Slug casting machine



Sew. 7, 1937. J. H. HIL'PMAN 2,092,211

SLUG CASTING MACHINE Filed April 11,- 1956 7 sheets-sheet 1 E F .l '.f IEQII@ 15516315 ,(19

Afrox/V535' J. H. HILPMAN lSLUG CASTING MACHINE Filed April 11, 1936 @E6 Sept. 7, 1937.

7 Sheets-Sheet 2 FFG Y INVENTOR j! ,L ATTO/w53:

sept. 7, 1937.

J. H. HILPMANv SLUG CASTING MACHINE Filed April l1, 1936 7 Sheets-Sheet 3 ,f /NVENTOR TTORNEYJ Sepi. 7, 1937. J. H, HILPMAN 2,092,211

SLUG CASTING MACHINE Filed April ll, 1936 7 Sheets-Sheet 4 la )NVE/V701? l' BY77 ]E:

' A TTORNE Y;

Sept. 7, 1937 J. H. HILPMAN 2,092,211

SLUG CASTING MACHINE Filed April ll, 1936 '7 Sheets-Sheet 5 A TTo/eA/Ew Sept. 7, 1937. J. H. HILPMAN 2,092,211

SLUG CASTING MACHINE Filed April l1, 1956 7 Sheets-Sheet 6 A TTORNEYJ' Sept. 7, 1937.

J. H. HILPMAN 2,092,211

SLUG CASTING MACHINE Filed April ll, 1936 '7 Sheets-Sheet 7 [H If L y m V E /NI/ENTOR a Mv -A TTORNEYJ Patented Sept. 7, 1937 gg STATES 'i' GFFICE SLUG CASTING MACHINE Application April 11,

39 Claims.

This invention relates to slug casting machines, such as linotype machines of the general organi- Zation represented in United States Letters Patent to C, Mergenthaler, No. 436,532, wherein circulating matrices and expansible spacebands are composed in line by the manipulation of the keyboard, the composed line transferred to a slotted mold for the casting of a type bar or slug, and the matrices and spacebands thereafter separated and returned hy a distributing mechanism to the magazines from which they started.

In these machines, when the composed line is presented to the mold, it is positioned between a pair of line clamping jaws which have been previously set to receive it and, while so positioned, the line is justified by the expansion of the spacebands which are driven up through the line by a so-called justification bar operated prior to the casting operation. Ordinarily, the right hand jaw is relatively xed (having only limited movementv to operate the customary pump stop), whereas the left hand jaw is adjustable to different positions to accord with the length of the mold slot or with the length of the composed line in its justified condition. In casting under such conditions (which are the most common conditions), it is obvious that the number of matrices and spacceands composed must be su'cient to fill out the line completely (except, of course, for the limited space allowed for justification), and

hence when it is desired to cast slugs with blank' spaces at the ends for indenting or centering, it is necessary to employ blanks or quads for that purpose, involving considerable annoyance and delay.

The general object of this invention is to adapt the machine not only to cast lines of full length as ordinarily, but in addition lines of` less than full length, regardless of their actual length, so that the latter lines may be composed without blanks or quads, and merely with the matrices necessary for the printed matter. While various schemes of this sort have heretofore been proposed, the present invention offers many improvements upon prior arrangements in the way of greater simplicity, better efficiency and more extended scope of operation.

According to the invention, the movable supports for the two line clamping jaws (the latter being made long enough to perform their required functions of closing the mold slot at the front) are actuated through two distinct trains of connections from a vertically movable rod controlled directly from the main shaft of the machine. LWhen both jaw supports are connected 1936, Serial No. 73,849

to the rod, they are, prior to casting, moved equidistantly toward each other until arrested by the contact of their respective jaws with the opposite ends of the composed line (for centering), and later, after casting, restored to their original positions of maximum separation. Due provision is made for disconnecting either the right hand jaw or the left hand jaw from the vertically movable rod, so that one or the other may be operated independently for quadding at the right or at the left, as may be desired. Provision is also made for disconnecting the Vertically movable rod from its actuating devices when it is desired to operate the machine in the regular way.

When the line clamping jaws are moved into contact with the composed line, they are engaged by a pair of pawls arranged to cooperate each with a set of teeth with which the respective jaws are equipped. These pawls have fixed banking stops that permit the jaws to move a slight distance apart to allow for a limited line spread during justification when the line is composed with expansible spacebands. Should the line be composed with blanks or quads however, instead I CJI of spacebands, no line spread will occur and, in

order that there be sucient pressure exerted on the ends of the line during the casting operation, means have been provided for actuating the pawls to urge the jaws inwardly to compress the line. These means, of course, will be operative when the line is composed with spacebands, but as they act after the justification period, the spacebands will previously have spread the line to the maximum extent allowed by the position of the jaws and the play in the teeth, with the result that the means just alluded to will have no effect, under the conditions stated, as far as concerns the moving of the jaws against` the line.

The pawls are connected for simultaneous operation through the medium of a common member which, in the illustrative embodiment, is the pump stop lever. In the commercial machines, the pump stop lever normally is in a position to preventV casting and is rendered inoperative so as to permit casting through a slight movement of the right hand jaw when the line has been justified out to its full extent. In the present instance however, the pump stop lever is operated from the main shaft of the machine and acts through intermediate mechanism to move the pawls for applying the necessary pressure on the line during casting. In further contrast with the commercial machine, the pump stop Vlever in its normal position will allow the casting operation to'proceed and, if it does not move at all,

` and prevent the casting operation. f

soV

as would be the case when a line with spacebands has been properly justified, a slug will be cast.

'If the pump stop lever moves slightly, as will be the casewhen the pawls have moved to apply pressure Yto a line with blanks or quads and no spacebands, a slug likewise will be cast. If however, there has been an excess of movement of the pump stop lever, as in the case when a line composed with spacebands has not been fully justied to ll out the space between the jaws, or if the pawls have been vmoved through a distance greater than normal in attempting to apply pressure to a line composed without spacebands,

Vsuch excess movement of the pump stop' lever will introduce a stop in the path of the pump lever Since the pawls operate simultaneously throug a common member, provision is made `for rendering either of them inoperative to actuate the jaws, depending upon the quadding operation forwhich the machine` isv set, or both of them inoperative when lines of full measure are being The means for accomplishing this result take the form of flat portions or lands associated rest when the jaws are in their positions of maximum separation. The dimensions of the lands are such that the jaws may have arnaximum movement of threeems inwardly toward the line before the teeth or rack vportions on the jaws come into active engagement with the pawls.

Consequently, if the machine is set for, say quadding with the right hand jaw, and a line with spacebands, twenty-seven ems in length or more, is positioned between the jaws, the pawls will not become active, for that one associated with the right hand'jaw will not leave the land, since the jaw will not have been moved inwardly, toward the line far enough to effect this result, and the pawl associated with the left hand jaw likewise will not leaveY the land, since this jaw, under ther conditions stated, will remain stationary. Under such circumstances, then, ther line will be justified out to its full length of thirty ems. The same will hold true if the machine is set -for quadding with the left hand jaw or for centering, but in the latter instance the pawls willbe set so that the distance throughuwhich the respective jaws move before the pawls leave the lands will be one-and-one-half ems, assuming that the thrust of the spacebands ,will space the line 4outto the extent of three ems. Provision is made for adjusting the pawls, so that the distance through which the jaws move before the pawls comeY into active engagement with the teethon the jaws may be varied from zero to rthree ems.

When the machine is set for normal operation, the pawls, even though they are actuated under these conditions, will not be operated to apply-pressure to the line 4through the jaws, since, under these circumstances, the jaws are not moved from their positions of maximum separation,V and consequently the pawls will not leave the lands.

In order that the machine may be used to cast lines of different measures, provision is made for adjusting the left hand jaw with respect to the block that supportsit, toward the right fromits position of maximum separation.. In order that the `pawl associated withY the left hand jaw may operate in theusual way under such circumstances, the associated land, insteadY oi. being formed integral with the left hand jaw, as is'the Fig. l is a front view oi a portion of a Slug casting machine equipped with the present improvements; 1

Fig. 1a is a vertical section on line lar-11 of Fig. 1;

Fig. 2 is a horizontal section on line 2 2 of Fig. 1; Y

Fig. 3 is a view of the parte shown in Fig. 1, and depicting the operation oi theparts in centering;

Fig. 32d is adetail view tween the vertically movable rod and the train of connections for operating one the jaws; Y Fig. 4 is a view of the vertically movable-rod and part of the mechanism associated therewith,

and illustrating details of construction;

Fig. 5 is a horizontal section on line 5-5 of Fig. 3;

Fig. 6 is a side elevation of a portion oi the various parts, and illustrating the operating connections for the vertically movable rodand the pump stop lever;

Fig. '7 is a plan 'view,'showing the jaw actuating pawls and the associated operating mechanism therefor; v

Fig. 8 is a vertical section on line 8--8 of Fig. 7; Fig. 9 is a detail view of the devices for operating the jaw operating pawls simultaneously from the pump stop lever;

Fig. 10 is a plan view, showing4 aportionof the mechanism in Fig. '7, and depictinga condition, wherein a short line has not been properly justied to ll out the space between theV line clamping jaws; n Fig. l1 is a vertical section on line i E-ll of Fig. l0; Y

Fig. 12 is a vertical section on line l2--l2 of Fig; 10;

of the connection be- Y' Fig. 13 is a side view of the pump stop lever and a portion of its operating mechanism and a portion of the mechanism operated thereby;

Fig. 14 is a side view of a portion of the pump stop lever operating mechanism, illustrating a condition wherein a casting operation will be prevented;

Fig. 15 isv a vertical section on line 557-25 of Fig. '7; Y

Fig. 16 is a longitudinal vertical section through a portion of the vise cap kin the vicinity ofY the right hand jaw, and illustrating a portion of the operating mechanism therefor;

Fig. 17 is a plan view of a portion of the mechanism for conditioning-the machine to perform the various operations; l Figs. 18 and 19 are views, illustrating the various settings of the mechanism for connecting the vthe line, the rst elevator immediately descends to position it between the left hand jaw E and CTM the right hand jaw F and in front of a slotted mold G (see Fig. 8) previously located in a horizontal position by a one-quarter rotation of the mold disc G1. The mold then advances from the rear and into contact with the line and the two clamping jaws for the slug casting operation, the line prior to casting being alined and justied in the usual way when the machine is being operated under the Usual conditions. After the slug has been cast, the mold is carried from its horizontal casting position to a vertical ejecting position by a three-quarter rotation of the mold disc G1, the rst elevator in the meantime being raised to deliver the composed line to the matrix and spaceband distributing devices, and nally coming to rest in the original or line receiving position.

As so far described, the parts and their operation, except as hereinafter noted, are or may be the same as embodied in a commercial linotype machine, or as set forth in the Mergenthaler Patent No. li36,532, before referred to.

As before stated, the present invention provides devices, whereby the line clamping jaws may be operated automatically to cooperate with lines of less than ull length, so as to cast slugs with blank spaces at either end, as for quadding, or at both ends, as for centering, and these automatic devices will now be described in detail. But rst, it should be stated perhaps, that each of the jaws E and F is made long enough when used alone, for quadding, to close that part of the mold slot left exposed by a short composed line, or, in the absence of a composed line to close the mold slot completely. Except as thus modified and as hereinafter noted, the two jaws are substantially the same as those employed in the commercial machines, and they are mounted for movement in the vise frame D in the customary manner, being carried by supporting blocks E1 and F1 slidable in suitable guideways formed in the vise frame D (see for example, Figs. 8 and 13). Y

In the present embodiment, the two jaws E and F are movable toward and from each other by a vertically movable rod H which may be connected at its upper end to the respective jaws through the medium of two similar but oppositely disposedL bell crank levers E2 and F2 pivoted at E3 and F3 to the vise frame D, the longer arms of said levers being connected by short links E4 and F4 to the jaw supports E1 and F1, respectively, and the shorter arms of said levers being arranged for connection to the rod H. According to this arrangement, when the rod H is moved downwardly from its uppermost position (which is the normal position of rest as shown in Fig. 1), it will move the two jaws equi-distantly toward each other (assuming both to be connected to the rod) until they contact with the opposite ends of a composed line which has previously been positioned between them and, when the rod is moved upwardly for restoration to its position of rest, it will in like manner move the jaws equi-distantly away from each other to return them to their original positions of maximum separation. The positions of maximum separation of the jaws is determined by the banking of a toothed rod W, to which the left hand jaw support El is connected (see Figs. 1, 3 and '7) against a fulcrumed plate W1, which in turn banks against the regular banking screw W2. The banking screw W2 acts to support the left hand jaw against the force of justification, and also limits the upward movement of the rod W after a quadding or centering movement, since,- as just stated, it determines the position of maximum separation of the jaws. Since the composed lines positioned between the jaws may vary in length, the actual extent of the movement of the rod H will, of course, vary accordingly, and hence, provision is made for such varied movement of the rod in its actuating connections, as will presently appear.

In providing for connection and disconnection of the rod H with and from the jaws E and F (see Figs. 3, 32, 4, 18 and 19), the rod H is equipped at its upper end with a member Hl pinned thereto, and formed with a groove H2 for engagement with diametrically opposed pins e and f protruding inwardly from the extremities of the horizontal arms of the actuating levers E2 and F2 for the jaws E and F, respectively. The groove H2 in two diametrically opposed portions h and h1 is relatively deep, the member H1 in these portions being rounded-off on a diameter substantially equal to the distance between the levers E2 and F2. Intermediate the rounded-off portions h and h1, the member H1 is cut away as at h2, the groove in this region being relatively shallower and, diametrically opposite the portion h2, the member H1 not only is out away in the part below the groove to the same extent as at h2, but the portion above the groove is cut away entirely as at h3. According to this arrangement, when the machine is to be conditioned for regular machine operation, the rod H is turned to locate the member H1 in the position shown in solid lines in Fig. 18, wherein it will be noted that the pins e and f extend into the groove H2 and, for this setting of the member, both jaws would be actuated inwardly were it not for the fact that provision is made for disconnecting the rod H from its actuating connections under these conditions. In other words, for regular machine operation, the rod H partakes of no vertical movement, as in the case when quadding or centering and, as an additional precaution against movement of the jaws under such conditions, the member H1 is provided with an extension h4 that overlies a projecting lug d, formed on the vise frame (see Figs. l and 18) for this setting of the rod H and which positively prevents any inadvertent downward movement oi said rod.

When the right hand jaw only is to be connected to the rod H for right hand quadding, the rod H is turned to locate the member H1 in the dotted line position shown in Fig. 18, wherein the pin f associated with the train of connections leading to the right hand jaw projects into the groove H2. In this position of the member H1, the cut away portion h3 will be opposite the pin e, so that when the rod H is moved downwardly, the right hand jaw only will be actuated, the cut away portion h3 clearingthe pin e and allowing the left hand jaw to remain stationary.

When both jaws are to be connected to the rod H for centering, the rod is turned to locate the member H1 in the position shown in solid lines in Fig. 19, wherein both pins e and f project into the groove H2, and consequently, for this setting of the parts, the downward movement of the rod H will actuate the jaws equidistantly toward a composed line positioned between them.

When the left hand jaw only is to be connected to the rod H for left hand quadding, the latter is turned to locate the member H1 in the position shown by the dotted lines n Fig. 19, wherein the pin e will project into the groove H2 and, for this setting, the left hand jaw only will be actuated by the downward movement of the vertical rod H,'since the cut-away portion h5 will now'be opposite the pin f, with the result that the member H1 will clear the pin f when the rod H partakes of its vertical movement.

It will be noted that the locking extension 77,4 of the member H1 in all settings of the member, other than that for normal machine operation, will clear the lug d on the vise frame, and consequently will not interfere with the movement of the rod H. y

The rod H is turned to effect the different settings of the member H1 through the medium of a horizontally slidable bar J (see Fig. 17) formed at one end with rack teeth J1 arranged to mesh with a pinion H4 splined on the rod H. The bar J is supported in a slotted bracket D1 xed on the vise frame (see Fig. 1) and which acts to hold the rack portion J1 thereof in engagement with the pinion H4. The bar J is also supported in another bracket D2 likewise fixed to the vise frame and in which it is retained by an overlying plate D3 screwed to said bracket. The rod, at its right end, is connected through the medium of a shortI link VD4 to a lever D5 pivotally mounted'adjacent its center inthe bracket D2, Vthe arrangement being such that, as the lever is moved to different positions, the rod will in turn be actuated to rotate the vertically movable rod H to effect the different settings of the member H1. previously alluded to. Fixed `to the bracket D2 and'in a position overlying the lever is a quadrant plate D6, on which there is noted in different positions, the insignia Reg, indicating regular machine operation, R. H. Q indicating right hand quadding, Cen, indicating centering, and L JH. Q., indicating left hand quadding; and, when the lever is moved to the diierent indicated positions, which can readily be determined `by a pointer D7' xed on the lever and cooperating with the quadrant plate, the member H1 will be set to condition the machine for the performance of the respective operations indicated. Adjustable stops, `in the nature of set screws D2, threaded in lugs Dg formed on the bracket D2, are arranged to cooperate with the lever to limit its movement in both directions and, in lorder Yto insure accuracy in the setting kof the parts, there is provided a detent D10 in the bracket D2, beneath the horizontally movable bar J and which cooperates with one or another of a series of recesses J2V formed in the bottom of said bar and spaced therealong in diiferent positions corresponding to the different settings of the member H1.

The rod H, at lits lower end, telescopes into a sleeve H5, the normal position of which, i. e., when the line clamping jaws E and F are in their positions of maximum separation, is determined by a collar H6 pinned to the rod H and against which the sleeve `H5 banks at its upper end (Figs. 1, 3 and 4) The rod and the sleeve slide as a unit in suitable bearings D1 and D11 carried by the fixed vise frame, during va quadding or a centering operation. When the jaws, however,

are arrested by contact with afcomposed line, the

connection between the sleeve H5 and the rod H is broken and then later `(after the casting op,- eration) restored to effect the outward movement of the jaws, the rod -H in the meantime remaining stationary while the sleeve H5 Acontinues throughout its 'full range of movement.

The connection between the sleeve H5 and the rod H is through the medium of a pair of opposed dogs h5 pivotally mounted in a transverse recess h6 formed in the sleeve member and on pins h1 extending through the dogs and journalled at their ends likewise in the sleeve member (see Fig. 5). The dogs are formed at the top with lips 71.8 adapted to project into an annular groove b9 formed adjacent the lower end of the rod H, and Yat the bottom with projections 11,10 seating in an annular recess 111 formed interiorly in another sleeve member H7 that encircles the sleeve member H5 rst alluded to adjacent the lower end thereof. The sleeve members are connected for slight relativelongitudinal movement through the medium of a flanged bushing H8 that seats against both members at their lower ends and which is held in place by a spring H9 seated in the ybase of a recess formed lin the bushing H8 and reacting against the head of a screw H10 passing through the bushing and threaded into the base of the inner sleeve member H5. 5

When the rod H is set for regular machine operation, it will be noted (see Figs. 2 and 18) that a pair of opposed notches k12 formed in theY lower end of the rod H just beneath the groove h1 register with the dogs h5, so that as the sleeve H5 is lmoved downwardly Vfor this setting of the parts, .the dogs will pass through the notches, without affecting the rod H; and in order that this setting may be maintained accurately, the inner sleeve member H5 is -held againstV rotation with respect to the outer sleeve member H7 by a set screw -h13 threaded through the outer sleeve member and projecting at its inner end into a slot ,12,14 formed in said inner sleeve. For all other settings of the rod H, however, the notches just referred yto will be out of register with the dogs h5, so that 4as the sleeves are moved downwardly. the rod H will move along with them (see Fig. 2)

The vertical movement, of the sleeves H5 and H7, and consequently of the rod H, is eifected from the main shaft .ofthe machine, the connections for this vpurpose including, in part, a pair of links M15 provided with pins hl projecting into the outer sleeve member H'1 in diametrically opposed portions thereof Vand connected at the front end of a ylever H11 pivotally mounted adjacent .its center in the mai-n frame of the machine (see Fig. 6). The connections further include a -long fore-and-aft -link H12 connected at its*V front end to the lever H11 and at its rear end to the ylower yarm of `a bent lever H13 pivotally mounted likewise .adjacent its center on a bracket H14 supported by the main frame and which is provided at its upper end with a roller H15 tracking upon the .periphery of a rotary edge cam M fast to the main shaft of the machine, the roller H15 being held against the cam by a .tension spring H16 connected to the lever H13 and anchored in the main frame. Y

According ,to the .foregoing arrangement, it will be observed that the rotation of the cam M (which is always in a clock/wise direction and which'makes one complete rotation at each cycle of operation ofthe machine) yis ,imparted to the rod Hlthrough the .train of connections just described-to move the rod rst downwardly to eiect the `inward or vclosing movement of the jaws E and F until the jaws are arrested by vcontact with the composed line. length'of the line, the jaws will be arrested prior to the time that the .roller H15 reaches the high portion ofthe cam and the-continued rotation of the latter will impart a slight movement, against the tension of the spring H9, to the outer sleeve H7 wthrespect to the inner sleeve H5, which movement will result in actuating the dogs h5 out of the groove iig in the rod H. Thereafter, the sleeves will continue their downward movement, as determined by the edge cam M (see Fig. 3), the rod H in the meantime remaining stationary until it is again connected to the sleeve H5 upon the upward movement of the latter after the casting operation has taken place. As the sleeves H5 and H1 move upwardly, the dogs h5 associated therewith will be cammed outwardly upon striking the lower end of the rod H by virtue of a bevelled portion with which the lower end of the rod H is provided, whereupon they will again enter the groove h9 formed in said rod under the action of the H9. Thereafter, the rod H and the sleeves H5 and H7 will move upwardly as a unit to return the jaws E and F to their positions of maximum separation (Fig. l). The position of the collar H0 on the rod H, is such as to insure re-engagement of the dogs h5 with the rod H. As previously stated, the downward or jaw closing movement of the rod H takes place as the roller H15 runs from the low portion of the cam M onto the high portion of the cam, while the upward or jaw separating movement of the rod takes place as the roller runs from the high portion of the cam onto the low portion thereof, this latter movement of the parts being ei'ected by the spring H15 which acts always to hold the roller in contact with the rotary cam. It may be here noted that the high and low portions of the cam M are concentric throughout approximately half the rotation of the cam, it 'being made so in order that, in one case, the jaws will be closed before and held closed during the slug casting operation, and in the other case separated and held separated between successive slug casting operations.

When the jaws E and F have been actuated inwardly against a composed line, they are held in such positions by a pair of pawls K and K1 (see Figs. l, 7 and 8), pivotally mounted adjacent their front ends for vertical movement on posts K2 projecting upwardly from the vise frame D, and arranged to cooperate each with a set of teeth E5 and F5 formed in the top edges of the jaws E? and F, respectively. Adjacent their inner ends, there are associated withthe jaws, flat portions or lands E5 and F5 (Fig. 3) underlying the pawls when the jaws are in their positions of maximum separation. The extent of these lands is such that the jaws will have to be actuated inwardly a deiinite predetermined distance before the toothed portions of the jaws are brought into cooperation with the pawls. The purpose of these lands or flat portions will be described in detail later on. Sulce it to say at the moment, ii" either jaw has been moved inwardly during a quadding or a centering operation distance suiiieient to rallow the pawls to clear the lands, the pawls will drop down into one or another of the tooth notches in the respective jaws, depending upon the position of the latter.

In addition to being capable of pivoting in a vertical teeth d in the respective jaws, the pawls K K1 further arranged for swinging a limited distance in a horizontal direction, the posts K2 on which the pawls are mounted being journalled for this purpose in the vise frame. The pawls are actuated in a horizontal direcrection to permit engagement with the tion by a pair of movable shoulders K3 and K4 that cooperate with rounded. surfaces formed on saddles K5 and KG associated respectively with the pawls and suitably formed to receive them (Figs. 8 and 15). lThe degree of movement of the pawls is determined by the character of the line that is presented between the line clamping jaws. Thus, if a line is composed with blanks Vor quads and is devoid of spacebands, no line expansion will take place and, after the justification period but prior to the casting operation, the shoulders K3 and K4 will be moved simultaneously toward each other to swing the pawls and force the jaws tightly against the composed line. If a line composed with spacebands is presented between the line clamping jaws, justification will take place and in such cases, the line will be spread out or expanded until it fills the space between the jaws. In so doing, the jaws will be forced outwardly until the clearance between the pawls and the teeth with which they are at the moment cooperating has been taken up. Under the circumstances just recited, the pawls K and K1 will act positively to limit the degree of movement of the jaws E and F, since, during the justication operation, the pawls bank directly against the shoulders K3 and K4. When a line with spacebands has been expanded to ll out the space between the jaws and back the latter positively against the pawls, it is obvious that the pawls can not move inwardly, as in the case of lines composed without spacebands.

The shoulders K3 and K4, against which the pawls K and K1 bank, are formed at the inner ends of thimbles K'1 and K8 threaded respectively into a pair of blocks K9 and K10 located at opposite ends of the vise cap. The blocks K9 and K10 (see Figs. 7, 8, 10, 11, l2 and 13) are dovetailed into the vise cap, the block K0 at the left being formed with two oppositely extending lugs lc overlying the vise frame and which bank against a pair of stops d1 iixed to the latter. The block K10 at the right has one lug k1 extending forwardly, similar to the corresponding lug k of the left hand block, and arranged to bank against a stop d2 likewise fixed in the vise frame. The main body portion of the right hand block K10, however, is extended toward the rear, so as to cooperate with the pump stop lever P in a manner hereinafter to be described.

The blocks K9 and K10 are arranged for simultaneous movement toward and from each other so as to eiect the movement of the pawls K and K1, first inwardly to actuate the jaws E' and F against the line, and then outwardly after a casting operation to permit the line to be raised from between the jaws for distribution in the usual manner. The simultaneous movement of the blocks is eiected through the medium of a long hat rod L resting in a longitudinal recess provided in the top of the vise frame for the purpose and xed at its left end to the left hand block K9 at the base of the latter by a key Z projecting into registering transverse slots in the block and rod respectively (see Figs. 9 and l2). The rod L is arranged to be actuated by the movement of the right hand block K10, and. hence is connected to the block K10 through the medium of a swivel plate L1 pivoted at its center to a small plate d3 xed. to the vise frame D (see Figs. 11 and 16), and which has a portion extending into a recess in the body of the block K10 and overlying the swivel plate. The swivel plate L1 at its front end engages in a notch L? in the rod L (Pig. 9) and at its rear end in a similar notch K11 formed in a plate K12 screwed to the block K10 at the Y rear.

In their normal positions Y(see Fig. '7), the blocks K9 and K10 are held against the fixed stops d1 and d2, respectively, by a tension spring K13 connected to the leftrhand block and anchored to the vise frame. However, when the right hand block lK10 is moved toward the left, it will, through the ment of the blocks, as previously described, so-

that when the blocks are returned to their normal positions, the lpawls will likewise be returned, provision being made for this in the nature of levers K1l1 (Figs. '7 and 15) pivotally mounted on horizontal extensions formed on plates K15 screwed on the saddles K5 and K6. The levers K14 at their front ends are. equipped with compression springs K16 pressing against the pawl retaining saddles and at their rear ends with vertical pins K17 that engage behind the shoulders K3 and K4. With this arrangement, it will be seen that, despite the pivotal movement of the pawls, they will always be held in contact with their associated shoulders K3 and K1.

Thesimultaneous movement of the blocks K9 and K10 just described, is eiiected through a common member which, in the instant embodiment of the invention, is the pump stop lever P. In the present commercial machines, the normal position of the pump stop lever is such as to prevent casting, the lever being moved from its normal position to VallowV casting through a slight movement of the right hand jaw when a line has been justied out to its proper length. In the present instance, however, the normal position of the pump .stop lever P is such as to allow the casting operation to proceed, the lever being actuated into a position to prevent casting only in the event that a line composed with spacebands has not been justified to ll out the space between the jaws, or in the event that the .jaws have not moved inwardly against a line to exert the proper line clamping pressure thereon when the line is composed without spacebands.

As showns in Figs. '7, 10, 13 and 14, the pump stop lever P is pivotally mounted adjacent its center on the main frame of the. machine and banks at its front end through an adjustable banking screw p against the right hand blockK10. At its rear end, the pump stop lever is connected through a pin and slot arrangement with the front arm of a bell crank lever P1 pivotally mounted on a bracket PZ secured to the main frame. The other arm of the bell crank lever P1 is arranged to cooperate with a lug p1 projecting from a lever P3 that operates the metal pump. Normally, the bell crank lever P1 is held out of the path of the lug p1 and against a boss P1 on the bracket P2 (seeliig. 7) through the medium of a tension spring P5 fastened to the lever and anchored to said bracket. The bell crank lever P1', and consequently the pump stop lever P, are

.adapted to be actuated through the medium of a pin Pf1 slidably arranged in the boss P4, and which at its rear end cooperates with a conical portion P7 formed on a vertically movable rod P8. This rod P8 is'connected at its lower end to one arm oi a Y-shaped lever P9 pivotally mounted in the main frame ofthe machine and which has an- 7 other arm provided with a roller P10 adapted to track along an Vedge cam M1 fixed on 'the mainv shaft. During the greater part of Ya machine cycle of operation, the roller P10 will track along the high portion of the cam M1, thus holding the" rod P8 in its lowermost position, and hence, lo-

eating the conical portion P7 thereonl just be' Y heath the pin P0 that cooperates with the bell crank lever P1. Under these condo'tions, the bell crank lever will lie in its normal position, wherein`v it does not interfere with the operation of Vthe pump lever P3. However, after the justinoation operation has taken place, the low portion of the cam M1 will arrive opposite the roller P10 and, as

it does so, a large spring P11, connected to the` Y-'shaped lever P0 and anchored in the main frame of the machine, will act to urge the verti-V cally movable rod P3 upwardly, whereupon thek conical portion P7 will force the pin P6 against'the bell crank lever P1 to urge the same toward the position, wherein it will prevent operation of the pump lever P3. The same movement of the lever P1 will actuate the pump stop lever P and,

through the connections previously described, Y

cause it to act on the right hand block K10 and force the pawls K and K1 inwardly to apply pressure to the composed line through the jaws.

Whether or not the pump stop lever P will act to prevent a casting operation depends entirely# upon the condition of the line in casting position.

Suppose for instance", a short line with blanksor quads and without spacebands has been presented between the jaws. Depending now upon whether the machineris set for a quadding or a centering operation, one or both of thejaws will be moved inwardly into contact with the line and the pawl associated with the jaw or jaws moved will drop into active cooperation with the teeth associated with thevmoved jaw. tion devices will operate, but in the supposititious case will have no eiect, since, as previously stated, the Vline is devoid oi expansible spacebands. Thereafter, the low portion of the camY M1 will arrive opposite the roller P10, .whereuponV Vthe rod P11 will be forced upwardly, causing the I conical portion P7 thereon, through the pin P0,

Yto swing the bell crank lever P1, thereby causing the pump stop lever P top-ush the right hand block K10 to the left. As aresult, both pawls K and K1 will be moved inwardly simultaneousiy and, if the machine is set for centering, both jaws will be urged thereby against the line to 'exert the necessary pressure for the casting operation. If the machine isset for quadding, only` Y that jaw which has been moved inwardly-Will be urged towards the line, since the pawl associated with the other jaw under such circumstances,

ywill still rest upon its associated landallowing such jaw to remain in its normal position.

The full range Vof movement of the pawls K and K1 depends upon the throw of the conical shaped portion P7 onthe vertically movable rod P8 and, if the jaws, and consequently the pawls, are not brought to rest by the engagement of the jaws with the composed line as for instance, if the jaws had stuck prior to engagement therewith, said conical shaped portion will Yascend through its full range of movement and, in doing so, will move the bellVV crank ,P1V into the path of the lug p1 on the pump lever P3, which Thereafter, the justifica-Y yno inward movement of the jaws.

position is determined by an upwardly projecting pin p2 fixed in the bracket P2 (see Fig. 10), thus preventing the casting operation. If, however, the distance through which the pawls K and K1 have moved in actuating the jaws to apply pressure on the line has been limited by the Contact of the jaws with the line, indicating that the necessary pressure has been applied, the bell crank lever P1 will be correspondingly limited in its movement and will not be effective to prevent the opei'ation of the pump lever P3. Consequently, the casting operation will proceed as usual.y Since the connections between the pawls K and K1 and the bell crank lever P1 are positive in their nature, the ascent of the vertically movable rod P11 will be arrested, despite the fact that the operating spring P11 is relatively heavy.

In the event of quadding or centering a short line composed with spacebands, the latter will, during justification, expand the line to fill out the full space between the jaws and take up the play in the teeth. Under such circumstances, as previously described, no movement of the pawls will take place, the bell crank lever P1 remaining stationary and allowing the casting operation to proceed. However, if the line were not expanded to fill out the space between the jaws and the movement of the latter, through the medium of the pump stop lever, were not sufiicient to close the jaws upon the line, the pump stop would become effective, i. e., the conicalY shaped portion P7 on the rod P8 would ascend through a distance suflicient to actuate the lever P1 into the path of the pump lever P3, with the result that the casting operation would not take place.

The pump stop lever will also be operative to prevent casting when the machine is set for regular machine operation in the event the line is not properly justified to fill out the space between the line clamping jaws when the latter are in their positions ofv maximum separation. When the jaws are fully retracted, the pawls K and K1 rest upon the lands lil6 and FG associated with the respective jaws E and F throughout justification, since, under the conditions stated, there will be If the line is properly justified, the mechanism, described below, is rendered operative to arrest the movement of the pawls so as to permit casting, but if the line is not properly justified, the pawls will be free for operation in the usual way, as when the machine is conditioned for quadding or centering. That is, upon operation of the lever P, the pawls will merely slide along the lands, partaking of their full range of movement and, in so doing, allow the lever P1 to move into the path of the pump lever P3 and prevent casting. This condition is shown in Fig. 10. The pump stop lever P will operate in a similar fashion to prevent a casting operation when the machine is conditioned for quadding or centering in a case where the composed line is so long that the quadding movement of the jaw or jaws is not sulficient to allow the pawls to leave the lands and where the expansibility of the spacebands is not great enough to justify the line to full measure. In such a case, the pawls will operate in the saine manner as when the machine is conditioned for regular operation. However, if the quadded line is of such length that, upon justification, it becomes a line of full measure, the inward movement of the pawls is again restricted so as to there projects a pin P15 that acts to prevent rotation of said rod (see Fig. 14).

As previously stated, when the jaws E and F are in their positions of maximum separation, the pawls K and K1 rest on fiat portions or lands E6 and F6 associated with the respective jaws (Figs. 'l' and 16). One reason for this resides in the fact that when the parts are set for regular machine operation, a definite fixed spacing is essential between the jaws after justification has taken place. With the pawls resting on the lands, as they do when the machine is set for regular machine operation, it is obvious that they would be actuated through their full range of movement by the pump stop lever without affecting any movement of the jaws and thus prevent the casting operation, even though the line is properly justified, were it not for the fact that means are provided for arresting the pump stop lever P in its normal position to allow the casting operation to proceed when a line of full measure is presented between the jaws. The means for this purpose are illustrated in Figs. 16 and 20 and include in part a short lever S pivotally mounted adjacent its center on the vise frame and provided with a depending lug S1 cooperating with a horizontal set screw SZ threaded into the block F1 that supports the right hand jaw F. This lever, through the medium of a tension spring S3 connected to the lever at its left end and anchored in the vise frame, normally holds the right hand jaw in the position shown in solid lines in Fig. v16, which position is determined by a link S1 pivoted to the lever S at its right end and which extends upwardly to the top of the vise frame where it is equipped with a forwardly projecting finger S5 resting in a groove, one lateral face of which is presented by the plate d3, and the other lateral face by a small pivotally arranged interponent S6 likewise fastened to said plate. In the normal position of the parts, the top surface of the finger S5 is flush with the top face of the vise frame.

According to this arrangement, a line of full measure containing spacebands will, upon justication, effect the movement of the jaw F and the support F1 from the position shown in solid lines in Fig. 16 to the position shown in dotted lines and, in so doing, will cause the lever S to turn and project the finger S5 up into the path of the block K10. The upward movement of the finger S5 is arrested before it leaves the recess by a pin s xed in the vise frame and against which the lever S banks at its upper edge. Since the finger S5 does not leave the recess, it presents a xed stop for the block K10, and consequently, the pump stop lever P, although acted upon by the vertically movable rod P8, will remain stationary or at the most will be moved but slightly from its normal position, with the result that the casting operation will proceed as usual. Should the spread of the line (as for instance if it be tooI short) through justification be not sufficient to effect the slight movement of the right hand jaw bell crank lever P1 connected thereto in the path of the plug p1 on the pump lever P3, thus prevent- Ving the casting operation. i

During acentering operation or a quadding `operation with the right hand jaw F, the lever S will not be actuated, since its actuating set screw S2, under such circumstances, will have been moved away from the lug S1 on the lever S when the jaw support is mo 'ed to the left during such operations. Consequently, the finger S5 will re- 1 main in the recess and the movement of the block K to elfect the actuation of the pawls to squeeze the line will not be prevented.

In quadding with the left hand jaw, ho-wever,

' the right hand jaw remains relatively stationary and, in such cases the movement of the line against the right hand jaw, as a result o-f the inward movement of the left hand jaw, will operate the lever S in, the same manner as when casting a line of full measure, with the result that the finger S5 will be presented in the pathof the block `K10 an.d, ii this finger were held against move- -rnent inA itsprojected position, movement of the right hand block would be prevented, and consequently there could be no movement of the left hand pawl to apply pressure to the line throughV the left hand jaw. Consequently, when quadding with Vthe left hand jaw, the small interposed plate S6 is swung `from the solid line to the dotted line position shown in Fig. 20 (the plate being equipped with a small knob s1 for this purpose), thereby releasing the finger S5 and allowing Vthe block K10 tobe moved in the usual way. When the block K1(J returns to its normal position, the linger will likewise be returned by the action of a torsion spring s2 arranged at the pivotal connections between the arm S4 and the lever S and bearing at its opposite ends against the armand lever, respectively. The normal position of the arm S4 is determined by a pin s3 projecting from the vise Vframe and against which the arm S1 abuts at its edge. The swinging of the plate SG to the dotted line position in Fig. 2),.during left hand quadis necessary only when the lineis devoid of spacebands, since when the line includes spacebands, no. movement of the leftV hand pawl can take place in any event, once the spacebands-have and F have another purpose, namely, to allow for a slight movement of the jaws inwardly when the machine is set for quadding or centering without, however, permitting the pawls to come in contact with the teeth with whichthe respective jaws are equipped.' For instance, the machine might be set for a quadding right operation and ran unexpanded line, say 27 ems or more in length, bel presented between the jaws (assuming that the length ofthe mold is 30 ems in length). In such cases, the line would be Vexpanded out to its full measure of 30 ems without interference length or another may be used at will.

by the pawls,since, when Vthe-latter are on the lands, they have no effect.

The degree to which the jaws E and VF are allowed to move duringa-quadding or a centering operation before-the pawls come in vcontact with the teeth is adjustable from@ to 3 ems in the present machine, this adjustment heing'effected through the medium of a longrod T (see Fig. 7) that extendsalong the vise frame and beneath the pawls, which are formed with re-V` cesses for the purpose, and through the thimbles K1 and K8 that carry the pawl banking stops K3 and K4. The rod T is fixed to thethimble `K8 associated with the right hand pawl, 1out is splined to the thimble K7 associatedwith the left hand. .1.5 i

pawLso that said left hand thimble may move relatively to the rod. The right hand thimbleis threaded into the block K10 with a right hand thread, whereas the left hand thimble is threaded into its associated block K9 with a left handY thread. With this arrangement, it is obvious` thatbyrotating therod T in one direction, the pawl-s will be adjusted simultaneously inwardly, whereas by rotating the rodin the opposite direc'- tion, the pawls will be adjusted simultaneously-V outwardly. To yfacilitate thevadjustment of the pawls, the rod T is equipped at itsright end with a lrnurled handle T1, and the 'degree of adjustment is indicated by a scale T2 marked onthe handle and graduated in ems, which scale has associated with it a fixed pointer T3 to indicate the degree of adjustment. The lscale-,indicates the degree of adjustment of each pawl.

The rod T is held in itsy diierent positions of adjustment by'means of Va spring kpresseddetent T4 (see Fig. la) equipped with a protrusion t arranged to engage in a notch t1 formed in that portion of the'handle that carries the scale; The

Adetent T? is shaped so as to facilitate its ready a stop k2 protruding from the block K10 at the Y right, and in the opposite direction by the bank-,

ing of the pins. KU against the vinnerv opposed faces of the blocks K9 and K10.y Y k In many instances, the moldslot in which the i slugs are cast is made Variable vinflength, and it is desirable, therefore, ,that one rof the line conlining jaws, usually the left hand jaw, be made adjustable to correspond, so that lines of one present machine, thv'e'left hand jaw E is made adjustable with respect to its jaw support E1, in order that such lines of short measure may be cast. The method of adjusting the jaw in the present instance isV the same in all respects as that shown in my copending application, Serial No. 33,815, led July 3i), 1935, and if further details of the construction thereof are desired, reference may he had to such application. When the left hand jaw isset for casting such shorter lines however, it is necessary, in order thatthe machine will operate in the same. manner as when lines of normal length areca'st,V that the land E6 associated with the left hand jaw be capable of cooperating Ywith theleft hand pawl K in the same manner as when it isV set-for lines of full measure. For this reason, Vthe land E@ is not integral with the left hand jaw, asis the case with the land F associated with the right In. theY hand jaw, but is formed on an interposed plate.

E1 carried by the movable jaw support E1 (see Fig. l); According tothis arrangement, when the left hand jaw E is moved in its adjustment for lines of different measure, its support El, and consequently the land carried thereby, will remain stationary and thus the land will always be in a position to cooperate with the pawl K in the required manner.

It might be mentioned here that the shape of the cam M1, by which the pump stop lever P is actuated, is such that pressure on the jaws will be released prior to the time that the line is lifted by the first elevator C from between the jaws. However, in order that there will be a wiping action on the end matrices of the line as the latter is withdrawn from between thejaws, the pawls K and K1 are held in engagement with the jaws until after the line has been fully withdrawn. As will be noted in Fig. 8, the means for lifting the pawls upwardly out of engagement with the jaws, in order that the latter may be returned to their positions of maximum separation, include a pair of vertically movable rods V arranged in the vise jaw, one b-eneath each of the pawls. Normally, these rods are held in an elevated position, to maintain the pawls disengaged from the jaws, by a pair of dogs Vl fixed to the opposite ends of a transverse rod V2 journalled in brackets V3 fixed on the vise frame (see Figs. 1 and 8), said rod being equipped with an arm V4 provided with a roller V5 that bears. against the vertically movable rst elevator C. When the elevator nears its lowermost or casting position, a depression C1 therein arrives opposite the roller V5, whereupon the rods V are urged downwardly under the action of springs V6. These springs V6 encircle reduced portions of the rods and bank at their lower ends against shoulders U presented near the lower ends of the rods and at their upper ends against the vise frame. It will be noted from Fig. 8 that the elevator C in ascending from the casting position does not effect the raising of the pawls until the line just clears the flat inner faces ofthe jaws, and in this way the wiping action, previously alluded to, will take place.

In the accompanying drawings, the invention has been shown merely by way of example and in preferred form, and obviously, many variations and modifications may be made therein which will still be comprised within its spirit. It is to be understood, therefore, that the invention is not limited to any specific form or embodiment, except insofar as such limitations are specied in the appended claims.

Having thus described my invention, what I claim is:

l. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaws, a pair of devices, one for each jaw, to cooperate with the jaws when in quadding position for exerting pressure on the line, and common operating means for said devices.

2. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaws, a pair oi' pawls, one for each jaw, to coopcrate with teeth on the respective jaws when the latter are in quadding position for exerting pressure on the line, and common operating means for said pawls. l

3. A combination according to claim 1, wherein the common operating means referred to includes a pump stop.

4. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaws, a pair of devices, one for each jaw, movable in opposite directions to cooperate with the jaws when in quadding position for exerting pressure on the line, common operating means for said devices, and reversing mechanism through which said common operating means acts upon said pressure exerting devices.

5. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaws, a pair of pawls, one for each jaw, movable in opposite directions to cooperate with teeth on the respective jaws when the jaws are in quadding position for exerting pressure on the line, common operating means for said pawls, and reversing mechanism through which said common operating means acts upon the pawls.

6. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for selectively effecting a quadding movement with one or the other of said jaws as desired, a pair of devices, one for each jaw, movable simultaneone toward the other in quadding, mechanism for i selectively effecting a quadding movement with one or the other of said jaws as desired, a pair of pawls, one for each jaw, movable simultaneous- 5 1y in opposite directions to cooperate with teeth on the respective jaws when the latter are in quadding position for exerting pressure on the line, means for effecting the simultaneous movement of the pawls, and means for rendering the f movement of either of said pawls ineffective upon its associated jaw when the machine is set for quadding with the other jaw.

8. A slug casting machine including, in combination, a pair of line clamping jaws movable ,l

one toward the other in quadding, mechanism for selectively effecting a quadding movement with one or the other of said jaws as desired, a pair of devices, one for each jaw, movable in opposite directions to cooperate with the jaws when in quadding position for exerting pressure on the line, common operating means for effecting the pressure exerting movement of said devices, and means for rendering the movement of either of said devices ineffective upon its associated jaw when the machine is set for quadding with the other jaw.

9. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for selectively effecting a quadding movement with one or the other of said jaws as desired, a pair of pawls, one for each jaw, to cooperate with teeth on the respective jaws when the jaws are ,in quadding position, common means for operating said pawls to exert pressure on the line, and means for rendering either of said pawls ineective upon its associated jaw when the machine is set for quadding with the other jaw.

10. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other for quadding, mechanism for selectively effecting a quadding movement with one or the other of said jaws as desired, and a pair of pawls, one for each jaw, adapted selectively to cooperate with teeth n the jaw selected for quadding for exerting pressure on the line.

11. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other for quadding, mechanism for selectively effecting a quadding movement with one or the other of said jaws as desired, a pair of pawls, one for each jaw, adapted selectively to cooperate with teeth on the jaw selected for quadding for exerting pressure on the line, and common operating means for said pawls.

12. A combination according to claim 10, wherein the pawls lare operated in common through a pump stop.

13. A slug casting machine including, in comv bination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for eecting such quadding movement of the jaw, pawl means adapted to cooperate with teeth on the jaw for exerting pressure on the line, said jaw having a predetermined degree of movement from a normal position during quadding beiore the pawl means become active, and means for setting the pawl means in diierent operative positions to vary said degree of movement.y

14. A slug casting machine including, in combination, a pair of line clamping jaws movable either toward the other for quadding at one end of the line or the other as desired, mechanism for effecting such quadding movement of the jaws, a pair of pawls, one for each jaw, to cooperate with teeth on the respective jaws when in quadding position for exerting pressure on the line, said jaws having a predetermined degree of movement from a normal position during quadding before the pawl means become active, and means for adjusting said pawls to vary said degree of movement.

15. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other for quadding, means for effecting such quadding movement of the jaws, a pair of pawls, one for each jaw, to cooperate with teeth on the respective jaws when in quadding position for exerting pressure on the line, said jaws having a predetermined degree of movement from a normal position during quadding before the pawl means become active, and common means for adjusting the pawls to vary said degree of movement.

16. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, means for effecting such quadding movement of the jaw, a pawl associated with the jaw and arranged to cooperate with teeth on the jaw when in quadding position for exerting pressure on the line, and a land associated with the jaw and movable therewith during quadding and serving to permit a limited quadding movement of the jaw before the pawl comes into engageable relation with the teeth thereon, said jaw being adjustable to accommodate lines of different measure and relatively to the land so as to permit the cooperative relation between the pawl and land to remain.

17. A slugy casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, means for effecting suchy quadding movement of the jaw, a

pawl associated with the jaw and arranged to cooperate with teeth on the jaw when in quadding position for exerting pressure on the line, and a land mounted independently of the jaw but movable therewith during quadding and cooperating with the pawl to permit a limited quadding movement of the jaw before the pawl comes into engageable relation with the teeth thereon, said jaw being adjustable to accommodate lines oi different measure and relatively to said land so as not to disturb the cooperative relation between the pawl and land.

18. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, means for eiiecting such quadding movement of the jaw, a support for said jaw through which the quadding movement is eiected, a pawl associated with the jaw and arranged to cooperate with teeth on the jaw when in quadding position for exerting pressure on the line, and a land mounted on the jaw support and cooperating with the pawl to permit a limited quadding movement of the jaw before the pawl comes into engageable relation with the teeth thereon, said jaw being adjustable with respect to its support to accommodate lines of different measure, and said adjustment being relative to the land so as not to disturb the cooperative relation between the pawl and land.

19. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, means for effeeting such quadding movement of the jaws, a movable line transporter for carrying a composed line of matrices to and from the jaws, a pair of pawls, one for each jaw, to cooperate with teeth on the respective jaws when in quadding position for exerting pressure on the line before casting and for releasing said pressure after casting, and means acting after the line has been removed from between the jaws for effecting the disengagement of the pawls from the teeth to allow the jaws to be returned to their normal positions of maximum separation.

20. A combination according to claim 19, wherein the means for eiiecting the disengagement of the pawls from the teeth is controlled from the movable line transporter.

21. A slug casting machineincluding, in combination, a pair of line clamping jaws movable one toward the other in quadding, means for effecting such quadding movement of the jaw, a device to cooperate with the jaw when in quadding position for exerting pressure on the line, and means for operating said device, said means including a pump stop normally inoperative to prevent a casting operation but operable in the event sufficient clamping pressure has not been exerted on the line to prevent a casting operation.

22. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, means for effooting such quadding movement of the jaws, a pair oi pawls, one for each jaw, to cooperate with teeth on the jaws when in quadding position for exerting pressure on the line, and common means for operating said pawls, said means including a pump stop normally inoperative to prevent a casting operation but operable in the event suflicient clamping pressure has not been exerted on the line to prevent a casting operation.

23. A combination according to any one of claims 1 to 5, wherein the common operating means is operated directly from the main shaft of the machine.

24. 'A slug casting machine including, in combination, a pair of line clamping jaws movable onel toward the other in quadding, mechanism for effecting such quadding movement of the jaws, and means for connecting either one or both of said jaws with the quadding mechanism as desired, said'means including devices supported by the vise frame and a handle positioned within easy reach of the operator seated at the keyboard, said handle being adjustable into different positions selectively to effect such connections between the quadding mechanism and the `jaws.

" 25. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaws including a vertically vmov-table rod. adjustable angularly for selective connection with either or botlil offsaid jaws as desired, and means for adjusting said rod angularly to effect the selective connections, said means including devices supported by the vise frame and a handle positioned within easy reach of the operator seated at the keyboard, said handle being adjustable into different positions corresponding to the different angular positions of adjustment of the vertically movable rod.

26. A combination according to claim 25,

wherein the devices for angularly adjusting the vertically movable rod include gear means associated with the rod, and complementary gear means meshing therewith and operated by the handle.

27. A slug casting machine including, in combination, a pair of line clamping jaws, means for positioning a composed line between the jaws, a normally inoperative pump stop, and devices controlled from one of said jaws for rendering the pump stop operative to prevent a casting operation in the event the jaws are not in proper clamping engagement with the line.

28. A slug casting machine including, in combination, a pair of line clamping jaws, means for positioning a composed line between the jaws, a normally inoperative pump stop, and devices controlled from the right hand jaw for rendering the pump stop operative to prevent a casting operation in the event the jaws are not in proper clamping engagement with the line.

29. A slug casting machine including, in combination, a pair of line clamping jaws, mechanism for effecting a quadding operation with the right hand jaw, a normally inoperative pump stop, means including the pump stop for operating the right hand jaw when in quadding position to exert pressure on the line, and means operable in the normal position of the right hand jaw and when the line has been properly justified to hold the pump stop in its normal inoperative position, and to render the pump stop operative when the line has not been properly justified between the aws.

J 30. A slug casting machine including, in combination, a pair of line clamping jaws, mechanism for effecting a quadding operation with the left hand jaw, a normally inoperative pumpstop, means, including the pump stop, for operating the left hand jaw when in quadding position to exert pressure on the line, devices operable in the normal position of the right hand jaw and when the machine is set for regular machine operation to hold the pump stop in its inoperative position when the line is properly justified, and to allow the pump stop to operate when the line has not been properly justified, and means for rendering said devices inoperative when the machine is set for quadding with the left hand jaw.

31. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism, including a vertically movable rod and actuating devices therefor, for effecting such quadding movement of the jaw, and means operable to break the connection between the rod and its actuating devices upon contact of the jaw with the line and thereafter to restore said connection to effect the return of the jaw to normal position.

32.` A slug casting machine including, in combination, a pair of line clamping jaws'movable one toward the other in quadding, mechanism, including a vertically movable rod and actuating devices therefor, including a sleeve movable relatively to the rod, for effecting such quadding movement `of the jaw, connections between the rod and sleeve, said rod and sleeve being movable as a unit during the quadding movement ofthe jaw, and means operable to break the connection between the rod and sleeve upon contact of the jaw with the line, and thereafter to restore said j connection to eiect the return of the jaw to normal position.

33. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism, including a vertically movable rod, for effecting such quadding movement of the jaw, and means for locking said rod against vertical movement vwhen the machine is set for regular machine operation.

34. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism, including a vertically movable rod and actuating devices therefor, for moving the rod to effect such quadding movement of the jaw, said rod and actuating devices being disconnected for regular machine operation, and means for connecting said rod and devices when the machine is set for quadding.

35. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism,

including a vertically movable rod and actuating devices therefor, for moving the rod to effect such quadding movement of the jaw, said rod and actuating devices being disconnected for regular machine operation, means for locking the rod against vertical movement when the machine is set for regular machine operation, and means operable upon setting the machine for quadding to release the rod and connect it with its actuating devices.

36. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaws, a pair of pawls, one for each jaw, and mounted on pivots disposed without the vertical plane of the jaws, teeth associated with the respective jaws, means operated from the line transporter for controlling the movement of the pawls in one direction into and out of engagement with the teeth on the jaws, and means for operating the pawls in another direction to press the jaws against the line.

37. A slug casting machine including, in combination, a pair of line clamping jaws, mechanism for effecting a quadding operation with the left hand jaw, pawl means adapted to cooperate with teeth on said jaw for exerting pressure on the line, and means for permitting a limited separating movement of the jaw during justication in the event the movement of the jaw during quadding has not exceeded a predetermined degree.

38. A slug casting machine including, in combination,` a pair of line clamping jaws movable one tow-ard the other in quadding, mechanism, including a vertically movable rod and actuating devices therefor, for effecting such quadding movement of the jaws, means operable to break the connection between the rod and its actuating vdevices upon Contact of the jaws with the line,

a pair of pawls, one for each jaw, to cooperate with teeth on the respective jaws when the latter are in quadding position for exerting pressure on the line, common operating means for said pawls, means including the line transporter for disengaging the pawls from the jaws, and means for thereafter connecting the actuating devices with the vertically movable rod to return the jaws to their normal positions.

39. A slug casting machine including, in combination, a pair of line clamping jaws movable one toward the other in quadding, mechanism, including a vertically movable rod and actuating devices therefor, for effecting such quadding movement of the jaws, means operable to break the connection between the rod and its actuating devices upon contact of the jaws with the line, a pair of pawls, one for each jaw, movable in opposite directions to cooperate with teeth on the respective jaws when the jaws are in quadding position for exerting pressure on the line, common operating means for said pawls, including a pump stop and reversing mechanism through which said common voperating means acts upon the pawls, means including the line transporter for disengaging the p-awls from the jaws, and means for thereafter restoring the connection between the vertically movable rod and the actuating devices to return the jaws to their normal positions.

JOHN H. HILPMAN. 

